Permission marketing is the privilege (not the right) of delivering anticipated, personal and relevant messages to people who actually want to get them.
I've asked everyone on my mailing list for their permission to send them a newsletter every quarter, and in every case they have signed up, saying they want to receive this information.
I offer people who meet me at conventions the chance to sign up and I offer people who email me the chance to sign up. Only those that want to get the emails. It's not spam.
In the newsletter, I always list the conventions I'll be attending over the next few months, how each of my games are doing and any information about new games in the pipeline. After Tuesday's discussion about a sale, I decided to offer the sale only to those people on my mailing list.
Only offering the sale prices to those people on my mailing list is a way of giving them something back for giving me permission to send them marketing information. It says that I appreciate their permission.
Although I am undercutting some retailers with my sale prices, it's a limited time offer, to a select group of people, so it shouldn't annoy my distributors and retailers.
Because it's going out to a limited number of people, lots of whom will already own my games, it won't boost my sales that much.
Because it's only mentioned to people on my mailing list, although it is a reward for being on my mailing list, it doesn't act as an incentive to join my mailing list as those people who aren't on it will never hear about it.
It's led to a few sales so far, not sure how many more to expect.